Glass Filled PTFE Hydraulic Non-Standard Piston Seal Assembly
Engineered for demanding hydraulic applications where standard seals fall short, this Glass Filled PTFE Piston Seal Assembly delivers exceptional performance in high-load, high-cycle environments. The glass fiber reinforcement dramatically improves wear resistance and dimensional stability compared to virgin PTFE, making it the go-to choice for custom bore sizes and non-standard cylinder configurations.
Key Benefits
Superior Wear Resistance – Glass fill content (typically 15–25%) significantly extends service life under heavy side-loading and continuous reciprocating motion
Low Friction, No Stick-Slip – PTFE matrix maintains smooth breakout and dynamic sealing, reducing energy consumption and improving actuator response
Chemical Compatibility – Resistant to a broad range of hydraulic fluids including mineral oil, water-glycol, phosphate ester, and synthetic fluids
Dimensional Stability – Glass reinforcement minimizes cold flow and extrusion under sustained pressure, maintaining seal geometry over time
Non-Standard / Custom Geometry – Manufactured to your specified bore, rod, and groove dimensions — ideal for OEM replacement, legacy cylinder repair, or custom machine builds
Temperature Range: -60°F to +500°F (-51°C to +260°C)
Pressure Rating: Up to 5,000 PSI (345 bar) depending on groove design and backup configuration
Media: Compatible with most hydraulic fluids, water-based fluids, and mild chemicals
Speed: Suitable for low-to-medium reciprocating speeds
Each assembly is precision-machined or cut to your exact groove specifications. Provide your bore diameter, groove width, groove depth, and system pressure for a custom fit. Backup rings and anti-extrusion components available as part of the assembly.
